The Linked Data Service is to provide access to commonly found standards and
vocabularies promulgated by the Library of Congress. This includes data values and the controlled
vocabularies that house them. Below are descriptions of each preservation vocabulary derived
from the PREMIS standard. Inside each, a search box allows you to search the vocabularies individually .
Preservation Vocabs (all)
An umbrella scheme to collocate all the preservation vocabularies.
the preservation repository is allowed to take.
A high-level characterization of the type of agent.
Content Location Type
Information about how and where a file is stored in the storage
designation for the copyright status of the object at the time the rights statement is
Cryptographic Hash Functions
A cryptographic hash function is a transformation that takes an
input and returns a fixed-size string, which is called the hash value. Hash functions
with this property are used for a variety of computational purposes, including
cryptography. The hash value is a concise representation of the message or document from
which it was computed. Cryptographic hash functions are used to do message integrity
checks and digital signatures in various information security applications, such as
authentication and message integrity. They may also be referred to as message digest
algorithms or checksum algorithms.
Hardware/software combinations supporting use of the object.
Environment Function Type
A description of the environment at a given level within the
The use(s) supported by the specified environment.
Environment Registry Role
or expected use of the environment registry.
Event Related Agent Role
The role of the agent in relation to the described event.
Event Related Object Role
The role of
the object associated with an event.
Event types are actions performed on digital objects within a preservation repository.
Format Registry Role
or expected use of the registry.
or function protected by the inhibitor.
Linking Environment Role
The role of the environment object associated with the agent, which allows one to record in what form the software or hardware
has been preserved in the repository.
category of object to which the metadata applies.
Preservation Level Role
in which a set of preservation options is applicable.
A specific characterization of the nature of the
A high level categorization of the nature of the relationship
between this object and one or more other objects.
of the basis for the right or permission.
Rights Related Agent Role
The role of the agent in relation to the Rights Statement.
The type of
encoding used in a digital signature.
A designation of the encryption and hash algorithms used for signature generation.
The class or category of software
required to render or use the object.
medium on which the object is stored.